Data and telecommunication line surge protection unit DD9 series

for Sub-D connectorRS-485thermoplastic

Summary

• Sub-D surge protector
• For RS232, RS485, 4-20mA lines
• 9-pin connector
• Instant deployment
• Secondary protection

OverviewThe DD9ESD surge protectors are designed to protect sensitive terminals connected to data lines equipped with Sub-D connectors. To ensure full compatibility with the lines, all connector contacts are transmitted and protected.

Electrical propertiesNetwork: RS232, RS485, 4-20mA
Nominal line voltage: 24 Vdc
Maximum DC operating voltage (Uc): 40 Vdc
Maximum frequency: > 10 MHz
Maximum data rate: < 40 Mbps
Insertion loss: < 1 dB
Maximum line current @25°C (IL): 750 mA
Maximum discharge current (Imax) - max withstand in 8/20 µs wave per pole: 125 A
Rated discharge current (In) C2 (1.2/50µs / 8/20µs), 10 applications X-X (Line/Line): 125 A
Rated discharge current (In) C2 (1.2/50µs / 8/20µs), 10 applications X-C (Line/Earth): 125 A
Total maximum discharge current (Imax Total) - total max withstand in 8/20 µs wave: 1125 A
Line inductance (± 10 %): none
Protection mode(s): Common mode
Protection level Up (C3 10/1000µs), Y-Y (Line/Line): 130 V
Protection level Up (C3 10/1000µs), Y-C (Line/Earth): 65 V
Line resistance: < 0.05 Ohm
Capacitance @1MHz, X-C (Line/Earth): < 500 pF

Mechanical propertiesTechnology: Clamping diode
Surge protector configuration: 9 wires
Connection: D-Sub 9 pts male/female in input/output
Format: Stacked D-Sub connector
Mounting: On cable
Enclosure material: Thermoplastic UL94 V-0
Operating temperature (Tu): -40 / +85 °C
Protection rating: IP20
Outdoor use: No
Fail-safe disconnection: Short-circuit - transmission interruption - fault mode 2
End-of-life indicator: Transmission interruption
Remote signalling: No
Pinout: all wires transmitted and protected
Dimensions: See drawing
Weight: 0.063 kg

Standards & certificationsCompliance: IEC 61643-21 / NF EN 61643-21 / UL497B
Certification: UL 497B

SchematicsSchematics and illustrations available (product drawing references).

Characteristics / technical specifications

• Model reference: DD9-24V
• Part number: 6147
• Brand: CITEL
• Product type: Sub-D surge protector for data lines
• Supported networks: RS232, RS485, 4-20mA
• Nominal line voltage: 24 Vdc
• Maximum DC operating voltage (Uc): 40 Vdc
• Maximum frequency: > 10 MHz
• Maximum data rate: < 40 Mbps
• Insertion loss: < 1 dB
• Maximum line current @25°C: 750 mA
• Maximum discharge current per pole (8/20 µs): 125 A
• Rated discharge current In C2 X-X: 125 A
• Rated discharge current In C2 X-C: 125 A
• Total maximum discharge current (8/20 µs): 1125 A
• Protection mode: Common mode
• Protection level Up (Line/Line): 130 V
• Protection level Up (Line/Earth): 65 V
• Line resistance: < 0.05 Ohm
• Capacitance (1 MHz, X-C): < 500 pF
• Technology: Clamping diode
• Configuration: 9 wires
• Connection: D-Sub 9 pts male/female input/output
• Mounting: On cable
• Enclosure material: Thermoplastic UL94 V-0
• Operating temperature: -40 to +85 °C
• Protection rating: IP20
• Outdoor use: No
• Fail-safe disconnection: Short-circuit - transmission interruption - fault mode 2
• End-of-life indicator: Transmission interruption
• Remote signalling: No
• Pinout: all wires transmitted and protected
• Weight: 0.063 kg
• Standards: IEC 61643-21 / NF EN 61643-21 / UL497B
• Certification: UL 497B